Blur Image is a free browser tool that hides faces, license plates, addresses, and account numbers in a photo by covering them with pixelation, blur, or a solid block. The choice of cover matters as much as the box you draw, because researchers have recovered readable text from pixelated screenshots. DocPivot Blur Image tells you which effects can be reversed, gives you one that cannot, and processes every file on your own device without uploading it.
What DocPivot Blur Image Does
DocPivot Blur Image lets you draw boxes over any part of an image and replaces the pixels inside each box with the cover you choose. Your browser decodes the file, applies the effect on an HTML canvas, and saves the result at the original resolution. No part of the image is sent to a server at any stage. The tool accepts JPG, PNG, WebP, GIF, and BMP files, and you can paste a screenshot straight from the clipboard.
Support agents and developers use it to clean screenshots before sharing them. Journalists, bloggers, real estate agents, and parents use it to hide faces, plates, and house numbers in photos. Each of them needs a detail gone before the image leaves their hands, not a creative effect.
The main problem it solves is false confidence. Pixelation and blur keep an average of the original pixels, and public tools have turned that leftover signal back into text. A person who pixelates a password assumes it is gone. Here, the Solid block option overwrites the area completely, and the export also drops EXIF data, which you can confirm afterward with the EXIF viewer.
Key Benefits of DocPivot Blur Image
- Redaction you can trust: The Solid block option paints an opaque black or white fill over the area. The covered pixels no longer exist in the saved file, so no software can recover them.
- Honest option labels: Each effect states whether it can be reversed. You make an informed choice between a natural look and true removal instead of guessing.
- Private by design: Processing happens entirely in your browser. A photo you are redacting because it is sensitive never travels to a stranger's server.
- Faster face work: One button finds up to 32 faces and places a box on each. You review the boxes instead of drawing every one by hand.
- Location stays hidden: The export drops metadata, including GPS coordinates. For a photo you only want to clean without editing, use the tool to remove metadata from a photo.
- Cheap mistakes: Boxes stay editable until you download. You can move, resize, or delete one without starting the whole image again.
- Full-quality output: The file keeps its original resolution with no watermark, no account, and no size limit beyond your browser's memory.
Core Features of DocPivot Blur Image
- Three cover effects: Choose Pixelate, Blur, or Solid block for each area. Pixelate is the default and suits faces in casual photos.
- Adjustable strength: Pixelate block size runs from 1 to 100, with 12 as the default. Blur radius equals the strength value divided by four, in pixels.
- Per-area settings: Every box remembers the effect, shape, and color it was drawn with. Changing the effect for a new face never downgrades an earlier solid bar.
- Rectangle and oval shapes: Ovals follow the outline of a head. Rectangles fit lines of text, card numbers, and plates.
- Editable boxes: Drag a box to move it, pull a corner to resize it, or delete it. Undo last and Clear all handle bigger corrections.
- On-device face detection: The Find faces button runs the BlazeFace model locally. Each box is padded by 18%, because a detector finds the face while you need the whole head covered.
- Clipboard paste: Copy a screenshot and paste it directly into the tool. No need to save a file first.
- Preview zoom: Zoom from 1x to 4x to place a box on a small detail. Zoom affects only the display, never the saved file.
- Stray-click filter: Any drag smaller than 2% of the picture is discarded, so an accidental click does not leave a smudge.
- Resolution-independent placement: Boxes are stored as fractions of the image, not screen pixels. They land in the same spot at full resolution regardless of preview size.
- Exact output preview: The preview shows the finished picture and its final dimensions before you save. If you need smaller dimensions afterward, run the file through the image resizer.
How DocPivot Blur Image Works
- Load the image. Choose a file, drag it onto the page, or paste a screenshot. The file is decoded locally.
- Mark the areas. Drag on the picture to place a box, or press Find faces to have boxes placed for you.
- Pick a cover for each area. Select Pixelate, Blur, or Solid block, and choose a rectangle or an oval.
- Apply the effects. Each box is mapped to full resolution, so it covers exactly what you marked in the preview.
- Download the result. DocPivot writes the file at its original resolution with metadata removed.
When to Use DocPivot Blur Image
Use the tool any time an image will leave your control and contains something that identifies a person, an account, or a place. It is most valuable for screenshots and photos shared publicly or with people outside your organization. It also helps when a detail needs to disappear but the rest of the picture must stay useful.
- Before a support ticket: Hide order numbers, emails, and names in a screenshot you send to a vendor's help desk.
- Before a public bug report: Cover API keys, tokens, and internal URLs before attaching a screenshot to a GitHub issue.
- Before posting group photos: Pixelate the faces of children or bystanders who did not agree to appear online.
- Before listing a property: Hide license plates, house numbers, and family photos visible in listing pictures.
- Before submitting expenses: Cover full card numbers and unrelated transactions on a photographed statement.
- Before publishing a tutorial: Remove your own email, account ID, and billing details from step-by-step screenshots.
- Before sharing chat captures: Hide the names and profile pictures of people in a conversation you quote.
The tool does not open iPhone HEIC or AVIF files directly. Convert them first with HEIC to JPG or AVIF to JPG, then load the result.
DocPivot Blur Image Use Cases
Support Ticket Screenshot
Context: A Shopify store owner needs to show a payment app error to support without exposing customer details.
Process:
- Paste the screenshot directly from the clipboard into the tool.
- Place solid blocks over the customer email and order number.
- Pixelate the customer avatar and download the finished PNG.
Result: Support sees the error and its context, while no customer data leaves the store owner's device.
Real Estate Listing Photos
Context: An agent uploads exterior photos to a WordPress listing site, and a neighbor's car plate is clearly visible.
Process:
- Draw a rectangle over the plate and a second one over the house number.
- Use Pixelate so the street scene still looks natural to buyers.
- Shrink the file with the image compressor before uploading.
Result: The listing keeps attractive photos while removing details that identify the neighbor or the exact address.
School Event Newsletter
Context: A parent volunteer wants to post a class photo on Facebook, but two families declined consent.
Process:
- Press Find faces and let the tool box every detected child.
- Delete the boxes for children with consent and keep the rest.
- Add ovals by hand for any face the detector missed.
Result: Only consenting families appear, and the process takes minutes instead of redrawing every face manually.
Expense Claim With a Card Statement
Context: An employee lost a receipt and must submit a photographed bank statement as proof of purchase.
Process:
- Place a solid block over the card number, leaving the last four digits visible.
- Cover every unrelated transaction with further solid blocks.
- Combine the images into one file with JPG to PDF for the finance team.
Result: Finance can verify the one purchase, and the rest of the statement stays private permanently.
Client Preview for Freelancers
Context: A freelance designer wants to show a portfolio piece that contains a client's internal dashboard data.
Process:
- Cover the revenue figures and client names with solid blocks.
- Keep the layout and visual design fully visible.
- Stamp the result with watermark image before posting it on Behance or LinkedIn.
Result: The designer shows real work without breaching the client's confidentiality agreement.
Choosing an Effect in DocPivot Blur Image
Use Solid block for anything that must never be read, and reserve Pixelate or Blur for cases where a natural look matters more than certainty. Pixelation replaces each block with the average color of its pixels, and blur spreads each pixel across its neighbors. Both keep information that an attacker can compare against guesses.
| Effect | How it covers | Can it be reversed? | Best for |
|---|---|---|---|
| Pixelate (default) | Shrinks the area to 1/N of its size with smoothing off, then scales it back up. Block size 1 to 100, default 12. | Sometimes. Each block keeps an average color. | Faces and backgrounds in casual photos |
| Blur | Gaussian blur with a radius of strength divided by four, applied by the browser. | Sometimes. The original pixels are spread, not erased. | Soft, natural-looking concealment |
| Solid block | Opaque black or white fill painted over the area. | No. The pixels are gone. | Passwords, keys, card numbers, IDs, addresses |
The risk is documented. Depix, released in 2020 by security consultant Sipke Mellema, recovers text from pixelated screenshots with no machine learning model, provided the attacker can match the original font settings. In February 2022, Bishop Fox researcher Dan Petro released Unredacter after it cracked a pixelated text challenge set by JUMPSEC Labs. His conclusion was direct: redact text with solid bars and nothing else. Faces carry a related risk. A 2016 study from UT Austin and Cornell Tech trained neural networks to identify people from pixelated faces and from faces blurred with YouTube's tool. The attack worked when the attacker had a set of candidate photos to compare against.
Redaction Mistakes DocPivot Blur Image Helps You Avoid
Most leaks from redacted images come from a handful of repeat errors, not from the tool itself. The following habits close those gaps.
- Blurring a credential: Short strings from a small character set, such as a six-digit code, are the easiest to guess back. Use Solid block for any password, token, or number.
- A bar that reveals length: A block that hugs the text shows roughly how many characters sit underneath. Extend the box well past the end of the string.
- Missing the second copy: The same email often appears in a browser tab, an address bar, and a page header. Zoom to 4x and scan the whole image before you save.
- Leaving metadata behind: Some photo editors have historically kept an embedded preview thumbnail of the unedited original inside EXIF data. This tool drops all metadata on export, so neither GPS nor an old thumbnail survives.
- Treating a PDF like a picture: A black rectangle drawn on a PDF is often a separate layer that anyone can delete. For documents, use Redact PDF, which removes the underlying content.
How DocPivot Blur Image Compares to Other Free Tools
DocPivot Blur Image is not the only private option, so here is a fair picture of where it stands. Local processing and a solid fill are no longer rare in this category. The difference is in the details around them.
Facepixelizer is the closest match. It also runs entirely in the browser, offers blur, pixelate, and solid fill, detects faces locally, and removes EXIF data on save. Its Auto mode, which scales the effect to the size of each area, is a genuinely useful idea. However, it accepts only JPG and PNG, applies each effect directly to the image, and uses a reverse drag to undo. Our tool keeps every box editable until download and labels the reversibility of each effect.
The free online blur tool from TechSmith, maker of Snagit, states in its own FAQ that solid-shape redaction is the most secure choice. In the free web version, though, the Solid option is marked as a premium feature, and uploads are capped at four per day. Design-focused editors such as Fotor, Canva, Pixlr, and Adobe Express treat blur mainly as a brush or slider inside a larger creative editor.
Some rivals do things this tool does not. Snagit's Auto-Redact detects text for you, and BlurMe can pixelate faces across hundreds of photos at once and also handles video. If you need automatic text detection, batch processing, or video, those tools are the better fit.
Frequently Asked Questions About DocPivot Blur Image
No, not for sensitive text. Blur and pixelation keep traces of the original, and tools like Depix and Unredacter have recovered text from pixelated screenshots. Use Solid block for passwords, keys, and account numbers.
Sometimes, especially for short text in a known font. Faces are harder to reconstruct, but research has shown they can be identified when an attacker has candidate photos to compare against.
No, everything happens in your browser. Even the face detection model is served from the DocPivot domain and runs on your own device.
Press Find faces or drag an oval over the head, then choose Pixelate or Blur. Check the result at a higher zoom level, because small or turned faces can be missed by the detector.
Detectors struggle with faces that are small, turned sideways, or partly covered. Draw a box by hand for any face the tool did not find.
Yes, with no account, no watermark, and no resolution cap. The only practical limit is the memory available to your browser.
It accepts JPG, PNG, WebP, GIF, and BMP files, plus screenshots pasted from the clipboard. To change the format afterward, use the image converter.
Yes, all metadata is dropped on export, including GPS coordinates. This protects the location your redaction was meant to hide.
No, the saved file has the effects written into its pixels. Keep your original somewhere safe if you might need it later.
No, zoom only changes what you see on screen. The file is always saved at its original resolution.
Crop when the detail sits at the edge and the image works without it. The crop image tool removes that area entirely, which is even more final than a solid block.
Use a dedicated PDF redaction tool so the underlying text is removed. If you only need to share that page as a picture, convert it with PDF to JPG and then cover the detail here.
